Leviticus 16:18 in the King James Version
And he shall go out unto the altar that is before the LORD, and make an atonement for it; and shall take of the blood of the bullock, and of the blood of the goat, and put it upon the horns of the altar round about.
Context
17 No one shall be in the Tent of Meeting when he enters to make atonement in the Holy Place, until he comes out, and has made atonement for himself and for his household, and for all the assembly of Israel.
18 “He shall go out to the altar that is before the LORD and make atonement for it, and shall take some of the bull’s blood, and some of the goat’s blood, and put it around on the horns of the altar.
19 He shall sprinkle some of the blood on it with his finger seven times, and cleanse it, and make it holy from the uncleanness of the children of Israel.